Fire-fighting pipeline for fire-fighting engineering
By installing clamps, connecting ears, L-shaped plates, and guide rods on fire-fighting pipelines, the deviation problem of drilling tools when drilling on curved pipelines was solved, achieving precise guidance and limiting, and improving the accuracy and efficiency of drilling.
Patent Information
- Application Number
- CN202520451895.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-14
AI Technical Summary
When drilling holes in fire-fighting pipelines, the arc shape of the drill bit and the pipeline surface causes drilling deviation, making it difficult to achieve precise guidance and positioning.
By installing clamps, connecting ears, L-shaped plates, and guide rods at the connection points of fire-fighting pipelines, and fixing them with bolts and nuts, combined with guide seats and arc grooves, the drilling tool can be guided and limited, ensuring drilling accuracy.
It effectively prevents the drill bit from slipping on the pipeline, ensures accurate hole positioning, expands the scope of application, and improves the accuracy and efficiency of drilling holes in fire-fighting pipelines.
Smart Images

Figure CN223930595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a fire-fighting pipeline used in fire protection engineering, belonging to the field of fire-fighting equipment. Background Technology
[0002] Fire protection piping refers to piping materials used in fire protection to connect fire protection equipment and materials, and to transport fire-fighting water, gas, or other media. When connecting mechanical tees to fire protection piping, holes need to be drilled in the piping. Because the surface of fire protection piping is curved, relative slippage can occur between the drill bit and the piping when drilling, leading to deviations in the drilling. Therefore, a fire protection piping system is needed to guide and limit the drilling process for fire protection engineering purposes. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fire protection pipeline for fire protection engineering to solve the problems mentioned in the background technology. This utility model realizes the guiding and limiting of the opening in the fire protection pipeline.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a fire-fighting pipeline for fire protection engineering, comprising a first pipeline and a second pipeline. A first clamp and a second clamp are fitted at the connection point of the first and second pipelines. Both ends of the first clamp are fixed with first connecting ears, and both ends of the second clamp are fixed with second connecting ears. The first connecting ears are connected and fixed to the second connecting ears by a bolt and a first nut. An L-shaped plate is provided on the side of the second connecting ear away from the first connecting ear. A through hole is provided on the side of the L-shaped plate that is in contact with the second connecting ear. One end of a bolt passes through the through hole. A second nut is provided on the side of the through hole away from the second connecting ear. The second nut is threaded onto the bolt. A detachable guide rod is installed on the side of the L-shaped plate adjacent to the through hole. The guide rod passes through a guide hole, which is located on one side of a guide seat. A guide opening for limiting the movement trajectory of a drill bit is provided on the side of the guide seat adjacent to the guide hole. An arc-shaped groove that conforms to the surfaces of the first and second pipelines is machined on the side of the guide seat away from the guide opening.
[0005] Furthermore, a plug rod is fixedly connected to the side of the guide rod facing the L-shaped plate. A slot that mates with the plug rod is provided at the end of the guide rod away from the plug rod. The plug rod on one guide rod is inserted into the slot on another guide rod. A first countersunk threaded hole is provided on one side of the guide rod. The first countersunk threaded hole communicates with the slot. A first positioning screw for limiting the position of the plug rod is threaded into the first countersunk threaded hole.
[0006] Furthermore, a connecting sleeve is fixedly connected to the side of the L-shaped plate facing the guide rod. A second countersunk threaded hole is opened on one side of the connecting sleeve. An insert rod on the guide rod is inserted into the connecting sleeve. A second positioning screw for limiting the relative position of the connecting sleeve and the insert rod is threaded into the second countersunk threaded hole.
[0007] Furthermore, the guide rod and the insertion rod are integrally formed, the insertion rod has a rectangular cross-section, and the slot has a rectangular cross-section.
[0008] Furthermore, the first connecting ear and the first clamp are integrally formed, and a first small hole for inserting a bolt is provided on one side of the first connecting ear.
[0009] Furthermore, the second connecting ear and the second clamp are integrally formed, and a second small hole for inserting a bolt is provided on one side of the second connecting ear.
[0010] Furthermore, the guide rod has a rectangular cross-section, and the guide hole has a rectangular cross-section.
[0011] Furthermore, the guide seat has a first rounded corner at its edges, and the L-shaped plate has a second rounded corner at its corners.
[0012] The beneficial effects of this utility model are:
[0013] 1. After connecting the first clamp and the second clamp by using bolts and the first nut, the first clamp and the second clamp cooperate to assemble the first pipe and the second pipe. Pass one end of the bolt through the hole in the L-shaped plate, and use the second nut to restrict the L-shaped plate on the bolt, thus restricting the position of the L-shaped plate. After removing the second nut, the L-shaped plate can be reused.
[0014] 2. Insert the guide rod on the L-shaped plate into the guide hole on the guide seat. At this time, the arc groove on the guide seat is in contact with the surface of the first or second pipe. Adjust the position of the guide seat along the guide rod to move the guide opening to the required position and insert the drill bit into the guide opening. Then, under the limiting guidance of the guide seat, the relative sliding between the drill bit and the first or second pipe is prevented, so as to guide and limit the opening of the hole on the fire pipeline.
[0015] 3. Based on the length of the first or second pipe, select an appropriate number of guide rods so that the insert on one guide rod is inserted into the slot on another guide rod, and use the first positioning screw to restrict the insert in the slot, thus completing the assembly of two adjacent guide rods. Repeat this process to complete the assembly of multiple guide rods. In this way, when the position of the L-shaped plate is restricted, the guide seat can move along the guide rail formed by multiple guide rods to the area where the first or second pipe needs to be opened, thus expanding the applicable range. Attached Figure Description
[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0017] Figure 1 This is a structural schematic diagram of a fire-fighting pipeline used in fire protection engineering according to the present invention;
[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0019] Figure 3 This is a schematic diagram of the assembly of a fire-fighting pipeline used in fire protection engineering from another perspective.
[0020] Figure 4 This is a perspective view of an L-shaped plate in a fire-fighting pipeline used in fire protection engineering, according to the present invention.
[0021] Figure 5 This is a perspective view of a guide seat in a fire-fighting pipeline used in fire protection engineering, according to the present invention.
[0022] Figure 6 This is a perspective view of a guide seat in a fire-fighting pipeline used in fire protection engineering, according to this utility model.
[0023] Figure 7 This is a schematic diagram of the assembly of a plug rod and a guide rod in a fire-fighting pipeline for fire protection engineering according to the present invention;
[0024] Figure 8 This is a perspective view of a connecting strip in a fire-fighting pipeline used in fire protection engineering, according to the present invention.
[0025] In the diagram: 1-First pipe, 2-First clamp, 3-Guide seat, 4-Second pipe, 5-Guide rod, 6-Guide port, 7-L-shaped plate, 8-First positioning screw, 9-Second positioning screw, 10-Connecting sleeve, 11-Second clamp, 12-Bolt, 13-First connecting ear, 14-First nut, 15-Second nut, 16-Second connecting ear, 17-Through hole, 18-Guide hole, 19-Arc groove, 20-Insertion rod, 21-First countersunk threaded hole, 22-Slot, 23-Second countersunk threaded hole. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] Please see Figure 1 and Figure 3This utility model provides a technical solution: a fire-fighting pipeline for fire protection engineering, including a first pipeline 1 and a second pipeline 4. A first clamp 2 and a second clamp 11 are fitted at the connection between the first pipeline 1 and the second pipeline 4. Both ends of the first clamp 2 are fixed with first connecting ears 13, wherein the first connecting ears 13 and the first clamp 2 are integrally formed, and one side of the first connecting ears 13 has a first small hole for inserting a bolt 12. Both ends of the second clamp 11 are fixed with second connecting ears 16, wherein the second connecting ears 16 and the second clamp 11 are integrally formed, and one side of the second connecting ears 16 has a second small hole for inserting a bolt 12. The first connecting ears 13 are connected and fixed to the second connecting ears 16 by the cooperation of bolts 12 and first nuts 14, so that one end of the bolt 12 passes through the first small hole and the second small hole in sequence, and the first nut 14 is screwed on to complete the connection and fixation of the first connecting ears 13 and the second connecting ears 16. The first clamp 2 and the second clamp 11 cooperate with each other to realize the assembly of the first pipeline 1 and the second pipeline 4.
[0028] See Figure 1 , Figure 3 and Figure 4 The second connecting ear 16 has an L-shaped plate 7 on the side opposite to the first connecting ear 13. The corner of the L-shaped plate 7 is machined with a second rounded corner. A through hole 17 is opened on the side of the L-shaped plate 7 that is in contact with the second connecting ear 16. One end of the bolt 12 passes through the through hole 17. A second nut 15 is provided on the side of the through hole 17 opposite to the second connecting ear 16. The second nut 15 is threaded onto the bolt 12. By passing one end of the bolt 12 through the through hole 17 on the L-shaped plate 7, the second nut 15 is used to restrict the L-shaped plate 7 to the bolt 12, thus restricting the position of the L-shaped plate 7. After removing the second nut 15, the L-shaped plate 7 can be reused.
[0029] See Figure 1 , Figure 2 , Figure 3 and Figure 8 A detachable guide rod 5 with a rectangular cross-section is installed on the side of the L-shaped plate 7 adjacent to the through hole 17. A connecting sleeve 10 is fixed to the side of the L-shaped plate 7 facing the guide rod 5. A second countersunk threaded hole 23 is opened on one side of the connecting sleeve 10 so that the insert rod 20 on the guide rod 5 can be inserted into the connecting sleeve 10. Then, the second positioning screw 9, which is threaded in the second countersunk threaded hole 23 to limit the relative position of the connecting sleeve 10 and the insert rod 20, is turned to realize the assembly of the guide rod 5 and the L-shaped plate 7.
[0030] See Figures 1-7The guide rod 5 passes through the guide hole 18, which has a rectangular cross-section. The guide hole 18 is located on one side of the guide seat 3. The guide seat 3 has a first rounded corner at its corner. The guide seat 3 has a guide opening 6 on the side adjacent to the guide hole 18 to limit the movement trajectory of the drill bit. The side of the guide seat 3 away from the guide opening 6 has an arc-shaped groove 19 that fits with the surface of the first pipe 1 or the second pipe 4. The guide rod 5 on the L-shaped plate 7 is inserted into the guide hole 18 on the guide seat 3. At this time, the arc-shaped groove 19 on the guide seat 3 fits with the surface of the first pipe 1 or the second pipe 4. The position of the guide seat 3 is adjusted along the guide rod 5 so that the guide opening 6 moves to the required position and the drill bit is inserted into the guide opening 6. Thus, under the limiting guidance of the guide seat 3, the relative sliding between the drill bit and the first pipe 1 or the second pipe 4 is prevented, thereby achieving the guiding and limiting of the hole in the fire pipe.
[0031] See Figure 1 , Figure 2 , Figure 3 and Figure 7 A rectangular-section insertion rod 20 is fixedly connected to the side of the guide rod 5 facing the L-shaped plate 7. The guide rod 5 and the insertion rod 20 are integrally formed. A rectangular-section slot 22 is opened at the end of the guide rod 5 away from the insertion rod 20 to mate with the insertion rod 20. The insertion rod 20 on one guide rod 5 is inserted into the slot 22 on another guide rod 5. A first countersunk threaded hole 21 is opened on one side of the guide rod 5. The first countersunk threaded hole 21 communicates with the slot 22. A first positioning screw for limiting the position of the insertion rod 20 is threaded into the first countersunk threaded hole 21. 8. Based on the length of the first pipe 1 or the second pipe 4, select an appropriate number of guide rods 5 so that the insert 20 on one guide rod 5 is inserted into the slot 22 on another guide rod 5, and the insert 20 is fixed in the slot 22 by the first positioning screw 8, thus completing the assembly of two adjacent guide rods 5. This process is repeated to complete the assembly of multiple guide rods 5. Then, when the position of the L-shaped plate 7 is restricted, the guide seat 3 moves along the guide rail formed by multiple guide rods 5 to the area where the first pipe 1 or the second pipe 4 needs to be opened, thus expanding the applicable range.
[0032] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A fire protection pipeline for fire protection engineering, comprising a first pipeline and a second pipeline, characterized in that: A first clamp and a second clamp are fitted at the connection between the first and second pipes. Both ends of the first clamp are fixed with first connecting ears, and both ends of the second clamp are fixed with second connecting ears. The first connecting ears are connected and fixed to the second connecting ears by a bolt and a first nut. An L-shaped plate is provided on the side of the second connecting ear facing away from the first connecting ear. A through hole is provided on the side of the L-shaped plate that is in contact with the second connecting ear. One end of the bolt passes through the through hole. A second nut is provided on the side of the through hole facing away from the second connecting ear. The second nut is threaded onto the bolt. A detachable guide rod is installed on the side of the L-shaped plate adjacent to the through hole. The guide rod passes through a guide hole, which is located on one side of a guide seat. A guide opening for limiting the movement trajectory of the drill bit is provided on the side of the guide seat adjacent to the guide hole. An arc-shaped groove that conforms to the surfaces of the first and second pipes is machined on the side of the guide seat facing away from the guide opening.
2. A fire-fighting pipeline for fire protection engineering according to claim 1, characterized in that: The guide rod is fixedly connected to the insert rod on the side facing the L-shaped plate. The end of the guide rod away from the insert rod has a slot that mates with the insert rod. The insert rod on one guide rod is inserted into the slot on another guide rod. A first countersunk threaded hole is opened on one side of the guide rod. The first countersunk threaded hole communicates with the slot. A first positioning screw for limiting the position of the insert rod is threaded into the first countersunk threaded hole.
3. A fire-fighting pipeline for fire protection engineering according to claim 2, characterized in that: A connecting sleeve is fixed to the side of the L-shaped plate facing the guide rod. A second countersunk threaded hole is opened on one side of the connecting sleeve. An insert rod on the guide rod is inserted into the connecting sleeve. A second positioning screw for limiting the relative position of the connecting sleeve and the insert rod is threaded into the second countersunk threaded hole.
4. A fire-fighting pipeline for fire protection engineering according to claim 2, characterized in that: The guide rod and the insertion rod are integrally formed, the insertion rod has a rectangular cross-section, and the slot has a rectangular cross-section.
5. A fire-fighting pipeline for fire protection engineering according to claim 1, characterized in that: The first connecting ear and the first clamp are integrally formed, and a first small hole for inserting a bolt is provided on one side of the first connecting ear.
6. A fire-fighting pipeline for fire protection engineering according to claim 1, characterized in that: The second connecting ear and the second clamp are integrally formed, and a second small hole for inserting a bolt is provided on one side of the second connecting ear.
7. A fire-fighting pipeline for fire protection engineering according to claim 1, characterized in that: The guide rod has a rectangular cross-section, and the guide hole has a rectangular cross-section.
8. A fire-fighting pipeline for fire protection engineering according to claim 1, characterized in that: The guide seat has a first rounded corner at its edges, and the L-shaped plate has a second rounded corner at its corners.